Bach 30E vs Bruno Tilz 310-M 15
The Bruno Tilz 310-M 15 has a wider cup diameter, the Bruno Tilz 310-M 15 features a deeper cup, the Bach 30E has a larger throat opening.
Cup Diameter
The Bruno Tilz 310-M 15 has a cup diameter of 31.00 mm compared to 30.00 mm on the Bach 30E — a difference of +1.00 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bruno Tilz 310-M 15 has a deep cup while the Bach 30E has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Bach 30E has a wider throat (8.33 mm vs 8.00 mm). A wider throat allows more air through, increasing volume and projection but reducing resistance.
Which is better?
Neither mouthpiece clearly dominates the other — the right choice depends on your embouchure, playing style, and the sound you're after. Try both if possible.